Process of uniting the ends of threads



Patented Oct. 26, 1926.

UNITED STATES MARION r. NICHOLS, or xNoxvILLnQrENNEssEE, nssreivon, or ONE-HALF x. HUNTER, or KNOXVILLE, TENNESSEE.

PROCESS OF UNITING No Drawing.

erable, with the result that heavy loss is incurred. The spun yards. or thread, frequently break when passing to the spools, or

to the knitting machlnes, or prior to the sizing operation. When this occurs, it is'the practice for the attendant to tie the ends of the broken yarn or thread together, and this produces the objectional knots.

As far as I am aware, no one has heretofore proposed to cement together the broken ends of spun yarn or thread which is passed to a knitting machine, for the purpose of eliminating the production of imperfect garments, due to the action of these knots upon thebneed'les or other operating parts of the knitting machine.

In accordance with my invention, the ends together by a suitable cement, preferably a rapidly drying cement solution, in a manner that the break can hardly be detected. The union of these threads produces a joint which is not perceptively larger in diameter than the yarn or thread, and the joint is free from knots or irregularities,permittingthe yarn v or thread to pass smoothly through the ricedles of the knitting machine, thus obviating the flaws in the product' and producing a perfect garment.-

In the practice of my method, I take a cement solution, which will preferably dry rapidly,'and apply the same to the ends of the spun yarn or thread to be united, and I quickly bring these coated ends together in overlapping relation, and then subject them to a slight andrapid rolling or twisting operation, which may be by hand or machinery. In a few seconds, the ends of the yarn or thread are united more firmly than the origof a broken, spun thread or yarn are secured PATENT OFFICE...

TO WILLIAM 'rHE nuns or THREADS. v

Application filed November 17, 1,925. Serial No. 69,707.

inal thread, and the diameter of the joint is .not perceptibly different from the diameter of the thread or yarn. If desired, the ends of'the yarn or threadv to be united may be partially frayed or tapered, and these tapered overlapping ends are, thus cemented together. Instead of applying the cement'to v the ends before they are brought together,

the cement may be applied afterwards and the same twistin to such ends.

In the production of the rapidly drying cement solution, vI make a solution of any cellulose material, such as gun cotton, pyo5 roxylin, nitro-cellulose, or any of the derivatives of cellulose, in a suitable solvent, such as ether, or ether and a1coho1,'or acetone. This cement solution is applied to the ends g and rolling action applied of the spun yarn or thread, as stated. I

have found that satisfactory results are ob- Qtained by employing a cellulose solution composed of substantially 30 grams of a soluble cellulose material, 750 cubic centimeters of ether, and 250 cubic centimeters of alcohol. This cement solution will dry rapidly, will securely unite the fibers in the spun yarn or thread, and is insoluble in water.

1 While the cement solution, above described, is one Well adapted for the practice of my invention, yet the proportions of the ingredients may be somewhat varied, as may be foundadvantageous, for use upen different threads or yarns. j

I have found that yarns or threads of cotv ton, wool, silk 'or linen, or other fibrous ma- :terial, may be properly united by my cement solution.

It is to be understood that the form of my invention herein described is to be taken as a preferred example of'the same, and that certain changes may be resorted to in the order of the steps of the method and that chemical equivalents may be employed n the cement composition, without departing from the spirit of my invention or-the scope of the subjoined claims.

Having thus described my. invention, I claim I 1. In a method 0 ends of spun strands by means of an adhe-' "sive in such a manner that knots or snmlarf knitting,'uniting the 10o tweet/e enlargements are eliminated, and feeding the union being efi'ected in such a manner that united spun strands to a knitting machine. knots or similar enlargements are eliminat- 2. In a method of knitting,-uniting the ed, and feeding the unlted'spun strands to a 10 ends of spun strands by overlapping such knitting machine. 5 ends and twisting the same under suitable In testimony whereof I aflix my signature. pressure in the presence of a highly volatile adhesive which is insoluble in Water, the MARION vF. NICHOLS. 

